Car wheel



'Jime 19; 1923. 1,459,691

W. R. PLITT ET AL CAR WHEEL Filed May 27. 1921 ammo z M PZZ' ii. Z7.19'. L Zqyd.

Patented June 19, 1923.

r Eric \VALTER R. PLITT AND WILLIAM A. LLOYD, OF MEYERSDALE,PENNSYLVANIA.

GAR WHEEL.

Application filed May 27,

To all whom it may concern:

Be it known that we, VVALTER R. PLITT and WVILLIAM A. LLOYD, citizens ofthe United States, residing at Meyersdale, in the county of Somerset andState of Pennsylvania, have invented certain new and useful Improvementsin Car Wheels, of which the following is a specification.

This invention relates to car wheels and is intended more particularlyfor mine car wheels but is, of course, applicable to all wheels whichrotate upon an axle. The object of the invention is to provide a strongand durable wheel which will run easily at all times and in which thewear between the axle and the hub will be minimized. The invention isillustrated in the accompanying drawings and will be hereinafter fullydescribed and specifically pointed out in the claim.

In the drawings- Figure l is a side elevation of a car wheel embodyingour invention;

Fig. 2 is a similar view, partly broken away and in section;

Fig. 3 is a transverse section on the line 3-3 of Fig. 2.

In the drawing, the reference numeral 1 indicates the tread or rim ofthe wheel, 2 indicates the spokes and 3 denotes the hub, these partsbeing cast as one integral structure. The hub includes a central sleeve4 of hard chilled metal and the rim 1 may also be hard chilled metal butthe other parts may be of softer material. The hub includes anirregularly shaped web 5 connecting the several spokes and the endportions of the said web are disposed at a greater distance from thecenter of the wheel radially than the intermediate portions, the saidweb being connected with the central sleeve 4 by end walls 6 therebydefining a space or chamber between the central sleeve and the webs intowhich oil or other lubricant may be fed through filling openings in theouter end wall 6 normally closed byplugs 7. It will be noted uponreference to Fig. 2 that the end portions of the oil chamber are ofconsiderable capacity and are connected with each other through narrowside portions or channels 8 which are disposed con- 1921. Serial N0.472,966.

centric with the inner sleeve 4 of the hub. On the inner surfaces of thewebs 5, at about the centers of the narrow channels 8, are ridges orlongitudinal projections 9 which have substantially semicircular crosssections and constitute splashers to direct the oil into and through theopenings 10 formed radially through the inner sleeve 4, and pro videdwith beveled or rounded outer edges. The wheel is secured upon the caraxle in the usual or any preferred manner by the employment of stoprings, nuts, or other well-known devices. The entire inner surface ofthe inner sleeve 4 of the hub is smooth and as it is a hard chilledsurface it will run upon the axle readily without cutting into the sameor being worn away by the axle. The lubricant chamber is intended to befilled with oil and as the wheel rotates the oil will flow from end toend of the said chamber through the intermediate channels 8 and thiscirculation of the oil will cause it to strike against the projections 9with considerable force so that it will be thrown toward the sleeve 4and will pass through the openings 10 therein to reach the axle aroundwhich it will form a thin film between the axle and the inner surface ofthe hub sleeve 4, as will be readily understood.

Our improved wheel is exceedingly simple and may be produced at a lowcost. By employing a hard chilled inner hub sleeve and lubricating theaxle in the manner shown and described, we attain a very easy runningwheel which will be very durable and in which the wear will beminimized.

Having thus described the invention, what is claimed as new is:

A car wheel consisting of a hub, spokes and a rim forming integralparts; radial projecting front and rear flanges on said hub, cylindricalwalls extending between said flanges and connecting some of the spokesforming a cylindrical chamber around said hub, other short cylindricalwalls connecting the remaining spokes and extending from the rearflanges, and ofiset flanges between said first cylindrical walls andsaid short walls forming pockets communicating with said cylindricalchamber,

chamber Will be forced through said apertures by said ridges during therotation of the Wheel.

In testimony whereof We aflix our signatures.

WALTER R. PLITT. [L. s.] WILLIAM A. LLOYD. [11. s.]

